ok here is the deal. I had 120gb drive that failed on P4 2GHZ 1GB harddrive It was partition C & D. When I hooked the drive to another computer and clicked on the C drive it wanted to format it. So I use Data recovery software to pull all my data off. I brought a WD 500gb drive and reinstall XP. I partition the drive when I was installing XP. The system was running fine for 3 days but then i received Boot failure system halt. I tried to reinstall XP but it wouldn't work. I hooked the drive up to another PC as a secondary and i couldn't access the C drive at all. It look like the drive was corrupted. So i brought another WD 500gb drive and did the same thing. Partition the drive while installing XP. Guess what, did it again. Boot failure system halt. I dont know what the problem is. What can it be